To solve this problem, we need to identify which health risk is not associated with increased UV radiation due to stratospheric ozone depletion. Let's analyze each option:$\newline \bullet$Option 1: Increased skin cancer$\newline$ - UV radiation is a major risk factor for skin cancer.$\newline$ - Depletion of the ozone layer increases UV exposure, leading to a higher risk of skin cancer.$\newline$ - Therefore, this is a prime health risk associated with UV radiation.$\newline \bullet$Option 2: Reduced immune system$\newline$ - UV radiation can suppress the immune system, making individuals more susceptible to infections.$\newline$ - This is a known health risk associated with increased UV exposure.$\newline \bullet$Option 3: Damage to eyes$\newline$ - UV radiation can cause damage to the eyes, including cataracts and other eye disorders.$\newline$ - This is a recognized health risk linked to higher UV levels.$\newline \bullet$Option 4: Increased liver cancer$\newline$ - There is no direct link between UV radiation and liver cancer.$\newline$ - Liver cancer is not typically associated with UV exposure.$\newline$Therefore, the correct answer is Option 4: Increased liver cancer, as it is not a prime health risk associated with greater UV radiation due to ozone depletion.